diff --git a/README.md b/README.md
index 20d92ef8..961477d7 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ The PowerShell script is a set of tweaks for fine-tuning the OS and automating t
 |Version|Code name|   Marketing name   |Build|Arch|PowerShell|
 |:-----:|:-------:|:------------------:|:---:|:--:|:--------:|
 | 1909  |  19H2   |November 2019 Update|18363| x64|   5.1    |
-| 1903  |  19H2   |   May 2019 Update  |18362| x64|   5.1    |
+| 1903  |  19H1   |   May 2019 Update  |18362| x64|   5.1    |
 
 ## Core features
 - Turn off diagnostics tracking services;